3. Сократите дробь: 16 3000 a) 48; б) 49; в) 15000.

a) \(\frac{16}{48}\) = \(\frac{16:16}{48:16}\) = \(\frac{1}{3}\)

б) \(\frac{21}{49}\) = \(\frac{21:7}{49:7}\) = \(\frac{3}{7}\)

в) \(\frac{3000}{15000}\) = \(\frac{3000:3000}{15000:3000}\) = \(\frac{1}{5}\)

Ответ: a) \(\frac{1}{3}\); б) \(\frac{3}{7}\); в) \(\frac{1}{5}\)